﻿@using System.ComponentModel;
@using System.Collections.Concurrent;
@inject IStringLocalizer<TablesDetailRowTemplate> Localizer
@inject IStringLocalizer<Foo> FooLocalizer

<Table TItem="Foo" IsPagination="true" PageItemsSource="@PageItemsSource"
       IsStriped="true" IsBordered="true"
       ShowToolbar="true" ShowDefaultButtons="false"
       OnQueryAsync="@OnQueryAsync">
    <TableColumns>
        <TableColumn @bind-Field="@context.DateTime" Width="180" />
        <TableColumn @bind-Field="@context.Name" Width="100" />
        <TableColumn @bind-Field="@context.Address" />
        <TableColumn @bind-Field="@context.Count" />
    </TableColumns>
    <DetailRowTemplate>
        <Tab>
            <TabItem Text="明细数据">
                <Table TItem="DetailRow" IsBordered="true" ShowToolbar="false" Items="@GetDetailDataSource(context)" AutoGenerateColumns="true"></Table>
            </TabItem>
            <TabItem Text="@Localizer["TabItemText"]">
                <div>@Localizer["EducationText"] @typeof(EnumEducation).ToDescriptionString(context.Education.ToString())</div>
            </TabItem>
        </Tab>
    </DetailRowTemplate>
</Table>

@code {
    private ConcurrentDictionary<string, List<DetailRow>> Cache { get; } = new();

    private static readonly Random random = new();

    private static IEnumerable<int> PageItemsSource => new int[] { 4, 10, 20 };

    [NotNull]
    private List<Foo>? Items { get; set; }

    /// <summary>
    /// OnInitialized 方法
    /// </summary>
    protected override void OnInitialized()
    {
        base.OnInitialized();

        Items = Foo.GenerateFoo(FooLocalizer);
    }

    private static List<DetailRow> GetDetailRowsByName(string name) => Enumerable.Range(1, 4).Select(i => new DetailRow()
        {
            Id = i,
            Name = name,
            DateTime = DateTime.Now.AddDays(i - 1),
            Complete = random.Next(1, 100) > 50
        }).ToList();


    private Task<QueryData<Foo>> OnQueryAsync(QueryPageOptions options)
    {
        IEnumerable<Foo> items = Items;

        // 设置记录总数
        var total = items.Count();

        // 内存分页
        items = items.Skip((options.PageIndex - 1) * options.PageItems).Take(options.PageItems).ToList();

        return Task.FromResult(new QueryData<Foo>()
            {
                Items = items,
                TotalCount = total
            });
    }

    private bool IsDetails { get; set; } = true;

    private List<DetailRow> GetDetailDataSource(Foo foo)
    {
        var cacheKey = foo.Name ?? "";
        return Cache.GetOrAdd(cacheKey, key => GetDetailRowsByName(cacheKey));
    }

    private class DetailRow
    {
        [DisplayName("主键")]
        public int Id { get; set; }

        [DisplayName("培训课程")]
        [AutoGenerateColumn(Order = 10)]
        public string Name { get; set; } = "";

        [DisplayName("日期")]
        [AutoGenerateColumn(Order = 20, Width = 180)]
        public DateTime DateTime { get; set; }

        [DisplayName("是/否")]
        [AutoGenerateColumn(Order = 30, Width = 70)]
        public bool Complete { get; set; }
    }
}
